%0 Journal Article %A V. A. Zhuravlev %A I. K. Kobozev %A Yu. A. Kravtsov %T On the frequency dependence of power radiated by a point source in a waveguide %J Doklady Akademii Nauk %D 1989 %P 1119-1122 %V 304 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1989_304_5_a21/ %G ru %F DAN_1989_304_5_a21